What is the meaning of Principal?

Primary; most important; first level in importance.

Of or relating to a prince; princely.

Chosen or assumed among a branch of possible values of a multi-valued function so that the function is single-valued.

The money originally invested or loaned, on which basis interest and returns are calculated.

The chief administrator of a school.

The chief executive and chief academic officer of a university or college.

A legal person that authorizes another (the agent) to act on their behalf; or on whose behalf an agent or gestor in a negotiorum gestio acts.

The primary participant in a crime.

Either party in a duel.

A partner or owner of a business.

A type of diapason on a pipe organ.

The construction that gives shape and strength to a roof, generally a truss of timber or iron; or, loosely, the most important member of a piece of framing.

The first two long feathers of a hawk's wing.

One of the turrets or pinnacles of waxwork and tapers with which the posts and centre of a funeral hearse were formerly crowned

An essential point or rule; a principle.

A dancer at the highest rank within a professional dance company, particularly a ballet company.

A security principal.

A main character or lead actor.

main; principal

main, key, principal

someone or something which is important, key, paramount

principal (school administrator)

principal (the money originally invested or loaned)

main, principal

main, principal

main; principal (most important)

fundamental; essential

having another body orbiting it

not subordinate

prelate of a religious, educational or commercial institution

principal, primary, chief, foremost

main, most important

essential

chief, boss

a principal; one who directs another (the agent) to act on one's behalf

Source: wiktionary.org